EPA Method 622 / 8141 - Analytes Back Catalog number: 90378 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9060.7-K-IP Tetrachloroguaiacol , 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 2539-17-5 Price on request 673197 Amidosulfuron, 100 µg/ml, Acetonitrile, 5ml Price on request 677100 Imidacloprid urea, 10.0 µg/ml, Acetonitrile, 10m Price on request